Stapling machine



hammery blows imparted tothe ejectorV orvv 40 4 staple, whenthe staple is in the act of be-l Patented Jan. 9, 1923.

1,441,474.v ATEL fr; fyrrics.-

' ANDREW ivi. ANDERSON., or niaruniv', frown.' ,c

s'rArLING'MAcHI'NE.

' To cZZw/iomz't may concern.' 1 jf Be it lknown that I, ANDREW M. ANDER- vsoN, 4a' citizenk of -the'Unitedf States, ,resid-y ing at Hepburmin the countyoi': Page andy State of Iowa, have invented ycertain new and yusefulimprovements in Stapling -Ma-' chines, of which thek following is a'fspeciiication, reference being hadto the accompanying drawings: f i

It is the purpose of the present invention toprovide a stapling machine provided with 'al v`magazine vfor fthe staples and.V means for yfeedingstaples from lthe 'magazine-'to a position under the ejectoror driver. rAnother purpose is to provide a stapling machine o1E this kind, wherein av staple re` driver.

f "Still ano-ther purpose is the provision oi'il aguide provided` with acover tofhol'd the Staples on the guide, therefbeing means-for removably attaching the cover tothe ma,-

, Avfurther purposeisrto,provide amachine, 'wherein the ejector includes means for receding' 2l Staple before 'itis driven, in ,case the staplefis incorrectly placed.

sti'llrfurther purpose to provide a machine whereinthe chamber for the staple is provided with means at its lower ,end toslightly retard the ejecting action oi the ing ejected. This retarding means lalso v'acts to guide the staple -:trom` the chamber.

.The invention also=aims to-provide a stapling 'machine including .a 'casing with staple ejecting means and `a handle-con! nected to the casingpivotally, and carrying the* manually actuated ejector operating means, the connection between said ejector operating means being'substantially "concen-..

tricwithzthe pivotal connection of the han# dle, wherebyk the handlek may be.' 'turned lin diiierent lateral directions, 'so ythat the' niachine maybe used 'for setting staples in a cavity, oraroundan object. In other words 4u `Figure l asit being ejected;

J Applicatiqamed April s,v 1922. serial No,` 550,787;

should it ybe. necessary toset and,` drive a staple around the corner of 'an object,

-mayvbe accomplished with the present form of machine, due tothe pivotal action of the handle.

`vlt is to be? understood thattheparticuklars'herein given are in no wayl limitative and. that while 'still keeping `within the scope of the invention, any desired modifications of detail and desired proportionsmaybe made circumstances;

The invention comprises further features and combinationof parts, as will be herein theV apparatusV according to Vinafter set forth, shown in the drawings and claimed. n

In the drawings'zv-#T j is a View infperspective of the improved stapling machine constructed in accordance with the invention, showing the handle as having been moved 4in a lateral direction, in'order *to* indicatehow the stapling machine may be used in a cavity or around an object;

Figure 2 is a longitudinal sectional-view through. the machine, .showing "the guide -extending'into the staple receiving cham!" ber, and also the .means carried' by the ej'ecy `tor or plunger for receding fthe` staple, in

case the same is incorrectly placed in posi- `Figure 3 is af vertical sectional view on line 3-3 of'Figure 2, showing the spring jaws at the bottom of the staple receiving chamber, :for guidingand ho'ldiilg,thel staple llligure [et horizontal sectional view online ofll'igure 2; j f j l Figure 5 is a view in sideelevation oi modified form oiistapling machine, wherein. the pivotal connection-*of the handle 'is elin'iinated.^y y W l Figure 6 is a face vview. of theV casingk showing the. opening' 6;

Figurel is an 4end view. of kthe yguide showing-the cover plate l5; f

FigureS is a sectional. views on line 8-8 of-FigureQ;y r-

Figure 9is'a kdetail view of the follower. "Referring to the drawings, vlr designates a casing having a staple receiving chamber 2i` This casing is composedof two sections 3 anda secured together bybolts 5. The

wall or section 3 of thefcasing has an opening (3, which conforms to the contour oi a say staple. A staple guiding shanlr 'T is formed integrally with the section or wall 3 and extends into the opening 6. The staples t be fed into the chamber str-addle the guidis spaced therefrom. The cover acts to` hold the staples in straddling positions on the guide shank. A vloop is carried by the section or wall 3 of the casing, and fixed or fastened to the cover 10 is a plate 11, providedv with a tongue 12 to engage the loop 13, which is carried upon the wall 3 of the easing. rl`he outer. face of the cover 10 adj acentI one end is provided with a looplllf. l

The latch plate 15 is disposed adjacent! the outer end of the guide shank 7, and the upper end of the latch plate terminatesin a iange 16 provided with a hook 17, which engages the loop 14. The'lcwer endof the latch plate 15 has a slot 19, through which a button 19 engages.v This but-ton is mounted so as to be rotated, so that it maybe disposed at right angles to the slot, to hold the ylatch plate closed, thereby 'preventing ther staples` from disengaging the guide sh ank.

Mounted for i vertical movement in the chamber 2 of the casing is an ejector or luno'erQO the lower endof which is arcuately formed as shown at 2l, to conform 1 to 'the curvature ofthe,staple. The ejecto'r is adapted to move downwardly, vto eject a staple from the chamber, so that'the eX-.

tremities of the arms of the staple may be ejected sufficiently beyond the lower end of the casing, so as to pierce the wood, post or the like into which the staple is to be driven. '.lfhe inner face of the wall i of the casing has an elongated groove 2Q, which recei ves a spring Qof the ejector, when the same is moved downward forthepurpose oi cjectilng a staple. However, il the plun-` ger is moved downward, and the' staple.

partly ejected from: the chamber, and it is discovered that the terminals of the .arn'i's of `the stapleare not properly placed, and the plunger or ejector actuating means are manually released, allowing the ejector to recede, the staple will recede with it, due to the spring engagingunder the arcuate portion of the staple.

` Countersunk in and secured to the walls of the lower part of the chamber ofthe casing, that is aty right angles to the walls orr sections 3 and Li are leaf springs 24:, which bear upon the arms of the staple as it is ejected or discharged from the chamber. Theseleaf. springsv act to guide the staple as it is being discharged, and also suitable means its ends cooperating with the pin ZG limit l the ejectorvor pliinger'in its movement.

Surrounding the upper portion of the ejector or plunger is an expansion `coil spring` 27 lieadQS of the ejector and theupper end of tliecasing. vThis spring normally holds the plunger or ejector in a raised position,

yso as to permit a staple to feed under and which is interposed between the in engagement with the arcuate end of the ejector. The pin 26 has pivoted to ita link 29. i y

l handle'p() is provided, .and one end thereof has a reduced portion 31, which'is pivoted betweenthe opposed yplates` and the stud 83, which is carried bythe section or wall 4 of the casing. 'A screw 34C passes through the platesY 32 and the reduced vend 31 and has a wing nut 35 applied to its end. A tei-shaped bracket 36 is also mounted upon the pivot of the handle. he screw 34 passes through the base of the bracket 3G. T he sides or arms of the bracket Eertend upwardly and rearwardly and terminate in perpendicular portions, the ends of which receive a pivot bolt `Si', Iwhichv pivotally supports the link or lever 38. p rl`he vend 39 of tlielinl: or rod 38 has a universal connection 40 with the link Q9. lt isgtofbe noted that the universal joint rconnection L10 is substantially v immediately in align- I' ment with the pivot 34,-in order to permity theliandle BO to ymove` laterally inAeither direction, without causing any undue binding/between the connecting parts of the actuating mechanism, which is carried by the handle. 'llielmvcrenil of the link or lever 0S is bifurcated as shown, and the arms ido caused to be ioruied by said bifurcationk liaveslots 4-1. h Y

,A ii ill-shaped bruclvct l2 is mounted upon the handle.` and arranged between the arms land pivotallv -inounted upon the pivot bolt 43 is a platey 11.-. An arcuate slot #i5 is formed in the plate ai. and passing through this slot, and also through theA slots al (of. the arms of said bifurcated end of the lever 38 is aconnecting or pivot bolt 46. Obviously when the plate a4; is tilted on its pivot,.tlie

lever 38 is tilted upon its pivot, thereby causing the end ,89 (whichis universallv connected to 4theliiilr 29)y toL movedownward, forcing the ejector oir-plunger downwardlv in its chamber.` Duc to the lower endof tlic ejector or plunger being arcuately formed, it bears uikionthc arcuate portion of the staple. and ejerts the saine from the chainber. The arms of the staple in this action extend beyond the lower end ot the casing,

rsuilicientl7 in. order to enable an operator to place the ends of the arms inproper position on the board or post into which the staple is to be driven, Alfter so placing the staple, suiiicient hammer blows are imparted upon the head of the ejector or plunger,

until the arms of the staple are driven into the post or board a distancek substantially equal to the kleiigth/ot the extending ends of the arms of the staple. In iiactthe staple may be driven ai substantial depthL into the ost or board but not entirely home whiley 7 .l 9

the stapling machine is in position.- After the staple has been driven distance snuicieiitly to properly set the staple', or `almost completely home, the stapling machine mayk be detached, and. the staple mayy then be driven home, by use of ahammer;

Also mounted upon the vhandle `is a U-shaped bracket 4:7, between the arms 'of which the trunnion 48 is mounted. The re ducedv ends of the trunnion areeng'aged in openings of the arms ,of the lJ-shaped bracket. A lever 4E9`is fixed to the trunnion, and vconnecting` the lever and the plate la ,y is a link 50.k

vOlwiously bytilting the lever..rearward-l ly, apulling action is' impartedupoii the link 50, which in l turn tilts'the platel 4A,

and due to its slot and bolt'c'onnectionwith the lever 38, its end 39 will tilt downwardly, thereby actuating` the ejector or plunger,

suilicientlyto eject lthe staple from the c hamber of thecasing. j j l.

In Figure 5 the Astap'lingl machineis substantially the same as the'y construction inv Figures l to t, with A'the vexception that the handle 30 is immovable relatively to the caswith tlie casing is eliminated.

ing. ln other words the pivot of the handle- The invention having been .set forth,

what is claimed is: c

l. ln a stapling machine, Ia casing havinga staple receiving. chanjiber, a Astaple guide therefor, an ejector in' said chamber,

a handle operatively connected ontlie casing" 'lfoi' swinging laterally, and ejector operating means on the handle andl having con- Iiection with said ejector, 'said connection being formed concentric with the iulcrum of 'saidv handle, means connected to the ejector for receding the staple 'before itis driven in case of incorrectly settingthe staple.' i

2. In a staplng machine, a ,casing havin` astaple receiving chamber, an ejector mounted for reciprocating movements iiiy said chamber, means tor actuating said ej ecl tor, means on the ejector for receding,` the "staple beiore itis driven in case ot incorrectly setting` the staple, means at the lower p0rtion of the cliainberto assist said staple recedingmeans, andv to retain thestaple in the chamberin case the means ejector `fails to vfunction.

ln a. stapling machine, a casing having` ,a staple receiving chamber, afsp'riiig carried bythe i i tensioned ejector operable therein, a handle 1 mounted on the casing for pivotal movement laterally, an ejector operating means mounted on the handle, ya universal joint ,connecting the ejector and a part ofsaid f ism to function when the handle is disposed `mounted for reciprocating movements,` in

said chamber, means ontlie ejector for receding the staple before itis driven in case the. saine is incorrectly placed, a handlej operatively connected lto rthe casing for lateral swinging moveinent,and means on the handle and` operatively connecting with the ejector tor imparting movement there- 5. In a stapling machine, a casinghavinga `staple receivinglchamber, an ejector lmounted .for 'reciprocating movements in= said` chamber, a handle connected to' the v casing, a pairot oscillatory members mount-4 ed upon the handle and having'slot and pin connections, one ofsaid members .being connected to said ejector, and afswinging ele'- `nient mounted on the the othermeniber.

6. lnja stapling machine, a vcasing having a staple .receiving chamber, a guide 'for handle for oscillating giii il.,iiiy the staples into said chamber, a, latched,cover said guide, an ejector in the staple receiving chamber Yoi partly ejecting a staple, whereby itniay be placeihnieaus on l .the ejcctoi'tor receding the staple betore itY is driven-11i case the saine Ais incorrectly placed, aliandle connectedto the casingaiid coiinectedtothe ejector for reciprocating the same. ,Y j

ln `testimonywhereofl` hereunto aiX my signature.l y, f l i j .neem M. ANDERSON.

ymeans'carried by theghandle and operatively y 

